Chemistry Reference
In-Depth Information
Table 3.2 Effect of reaction time on the molecular weight of PSBO.
Reaction
time/h
M
w
/g mol
1
Sample
SO/g
P/bar
T/1C
Catalyst/mol
1 (control)
100
110
140
2
0
1300
2
100
110
140
2
0.018
21 842
3
100
110
140
2.5
0.018
82 608
4
100
110
140
3.0
0.018
118 300
5
100
110
140
4.0
0.018
110 360
Table 3.3 The glass-transition temperatures of RPESO polymers prepared at various
initiator loadings.
Polym.
temperature/1C
Initiator
loading/mmol
Sample
T
g
/1C
RPESO-V
25
1.87
13.8
RPESO-II
25
2.79
15.9
RPESO-VI
25
4.75
15.7
RPESO-VII
25
7.72
24.1
Table 3.4 Data related to RPESO polymers.
Soxhlet extraction/
wt%
Soluble
Initiator
loading/
mmol
Monomer
loading/
mol
M
w
(soluble)/
g mol
1
Polym.
temperature/1C
Sample
Insoluble
RPESO-I
20
2.79
0.03
1040
21
79
RPESO-II
25
2.79
0.03
1937
5
95
RPESO-III
30
2.79
0.03
1429
16
84
RPESO-IV
35
2.79
0.03
1237
17
83
RPESO-V
25
1.87
0.03
2364
11
89
RPESO-VI
25
4.75
0.03
3606
3
97
RPESO-VII
25
7.72
0.03
3318
7
93
RPESO-VIII 25
2.79
0.04
4578
24
91
RPESO-IX
25
2.79
0.05
3066
20
94
RPESO-X
25
2.79
0.06
3349
17
83
Table 3.5 Thermal stability data for the RPESO polymers.
Sample/Temperature
200-220 1C
240-320 1C
340-450 1C
RPESO-I
5 wt% loss
13 wt% loss
82 wt% loss
RPESO-II
stable
7 wt% loss
91 wt% loss
RPESO-III
5 wt% loss
14 wt% loss
81 wt% loss
RPESO-IV
3 wt% loss
12 wt% loss
82 wt% loss
RPESO-V
5 wt% loss
10 wt% loss
88 wt% loss
RPESO-VI
stable
6 wt% loss
91 wt% loss
RPESO-VII
stable
5 wt% loss
90 wt% loss
RPESO-VIII
5 wt% loss
15 wt% loss
82 wt% loss
RPESO-IX
2 wt% loss
12 wt% loss
83 wt% loss
RPESO-X
stable
10 wt% loss
85 wt% loss
